let position
let velocity
let accelaration

function setup() {
    createCanvas(600, 300)

    position = createVector(width/2, height/2)
    velocity = createVector(0, 0)
    accelaration = createVector(0, 0)
}

function draw() {
    let keyCodeW = 87
    let keyCodeS = 83

    accelaration.x = 0
    if (keyIsDown(keyCodeW)) {
        accelaration.x += 0.001
    }
    if (keyIsDown(keyCodeS)) {
        accelaration.x -= 0.001
    }

    velocity.add(p5.Vector.mult(accelaration, deltaTime))
    velocity.limit(2)

    if (position.x < 0) {
        velocity.x = 0
        position.x = 0
    }
    if (position.x > width) {
        velocity.x = 0
        position.x = width
    }

    position.add(p5.Vector.mult(velocity, deltaTime))

    background(255)

    circle(position.x, position.y, 10)
}